Tenno and Guardians relationship with the primarchs and emperes

Okay, I have to ask what would the relationship look like? Supremely hostile or would it be more friendly? Like oh crap. They're killing all our enemies type deal like what would happen? Also, who's crushing on who like would a tenno and a guardian have a relationship or would a Primark? Let me know your thoughts. Also, how would the regular imperial citizen act like what they seem as saints or as demons or what would happen? I need bees and thoughts please